| Titre : |
Water-soluble melamine-Formaldehyde resins |
| Type de document : |
texte imprimé |
| Auteurs : |
C. Fisher, Auteur ; D. S. Pearson, Auteur ; I. Whyley, Auteur |
| Année de publication : |
1996 |
| Article en page(s) : |
p. 442-448 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Tags : |
'Peinture eau' 'Solution aqueuse' Liant Aminoplaste 'Mélamine résine' Préparation Solubilité 'Relation structure propriété' |
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
A major challenge confronting those who select waterborne technology as a route to Volatile Organic Content (VOC) compliant coatings is the need to reduce concentrations of organic co-solvents. This inevitably increases the constraints on the formulator due to the limited choice of suitable raw materials and the increased sensitivity of the systems in terms of compatibility, rheology and other application properties.
Melamine-formaldehyde (MF) resins in general are well established as crosslinking agents for hydroxylated film-forming polymers and exhibit a good balance between cost and performance. Also, MF resins can be formulated to be completely water-soluble, whilst retaining good compatibility with organic polymers. This ability to provide effective crosslinking agents which are completely free from organic solvents, stabilisers or emulsifiers can go some way towards easing the constraints on new water-borne formulations.
The object of this work was to investigate the design of water soluble MF resins in order to optimise their performance in aqueous systems. |
| Note de contenu : |
- EXPERIMENTAL : Resin characterisation - Film performance
- RESULTS AND DISCUSSION : Expected influences on water solubility - Reactions with formaldehyde - Condensation reactions - Etherification - Designing resins for water solubility - Quantifying the relationship between structure and water solubility - Film performance properties - Compatibility - Acetone rubs test |
| Permalink : |
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in SURFACE COATINGS INTERNATIONAL > Vol. 79, N° 10 (10/1996) . - p. 442-448
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